document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=1113041>Question 1113041</A>: <I><SPAN STYLE=\"word-break: break-all;\"> A student loses a mark for every wrong answer and scores 2 marks for every correct answer. If the answers all the 60 questions in an exam. and secure 39 marks, how many of them were correct </SPAN>\n" );
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document.write( "Here is a method of solving this kind of problem without algebra, using some logical reasoning.<br><BR>\n" );
document.write( "(1) If all 60 questions were answered correctly, the student would score 120 marks; the actual score was 39 marks, which is 81 less than 120.<br><BR>\n" );
document.write( "(2) Each wrong answer decreases the score by 3 (you lose 2 points for not having the right answer, and another point for having the wrong answer).<br><BR>\n" );
document.write( "(3) The number of wrong answers must then be 81/3 = 27.<br><BR>\n" );
document.write( "(4) And then the number of right answers must be 60-27 = 33. </SPAN>\n" );
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